Close-up of HULK bare copper conductor strands against a white background, showcasing the high purity, uniform stranding, and metallic luster that ensure low resistance and superior electrical conductivity.

Low-Smoke Halogen-Free USB 3.0 Railway Data Cable

This flexible USB 3.0, also known as USB 3.2 Gen 1×1, data cable is engineered for digital interfaces in rail vehicles. Three screened signal pairs, two auxiliary conductors and an overall foil-and-braid screen provide reliable signal transmission in compact, mechanically demanding and electromagnetically noisy installations.

Key Highlights

USB 3.0 and USB 3.2 Gen 1×1 applications · Three screened signal pairs · Two auxiliary conductors · Fine-stranded tinned copper · 90 Ω characteristic impedance · Compact 5.2 mm reference diameter · Overall foil-and-braid shielding · Low-smoke halogen-free materials · Oil and fuel resistance · Wide temperature range · Railway-oriented construction · Flame-retardant and self-extinguishing · PFAS-free material option

Application
Construction
Technical Data
Dimensions
Packaging

Suitable for USB 3.0 and USB 3.2 Gen 1×1 data connections in railway and transportation equipment.

Typical applications include:

Onboard infotainment systems
Diagnostic and maintenance interfaces
Passenger information equipment
Railway communication devices
Camera and video equipment
Data acquisition systems
Control and monitoring equipment
Driver-cab electronic systems
USB-connected displays and peripherals
Interior and protected exterior railway installations

The cable is intended for flexible installation and general mechanical movement. Continuous drag-chain operation and repeated torsion require application-specific qualification.

Cable configuration: 3 × (2 × 30 AWG) screened signal pairs plus 2 × 28 AWG auxiliary conductors

Conductor: Fine-stranded tinned copper

Core insulation: Special low-smoke, halogen-free flexible compound

Core identification: According to the approved production drawing

Pair and core stranding: According to the approved production drawing

Overall screen: Aluminium-laminated foil and tinned-copper wire braid

Outer sheath: Special low-smoke, halogen-free railway compound

Standard sheath color: Black, similar to RAL 9005

Cable shape: Round

Interface application: USB 3.0 / USB 3.2 Gen 1×1

Peak operating voltage: Maximum 90 V

Reference UL voltage: 300 V

Test voltage:

Core to core: 2000 V
Core to screen: 2000 V

Characteristic impedance: 90 Ω ±10 Ω

Minimum bending radius:

Fixed installation: 4 × cable diameter
Flexible application: 12 × cable diameter

Temperature range:

Fixed installation: −50°C to +90°C
Flexible application: −40°C to +90°C
Reference UL temperature: Up to +75°C

Reference halogen-free performance:

EN 50306-1
EN 50264-1
IEC 60754-1
IEC 60754-2
Fluorine content reference according to IEC 60684-2

Reference fire performance:

No flame propagation according to IEC 60332-3-25 and EN 50305
Flame-retardant and self-extinguishing according to IEC 60332-1-2
Smoke-density reference according to IEC 61034
Toxicity reference according to EN 50305

Railway fire-performance reference: R15 (EL1A) and R16 (EL1B) according to EN 45545-2 for hazard levels HL1–HL2

Vehicle flame-performance reference: ISO 6722 / UN ECE R118

Oil and fuel resistance reference: EN 50264-1

Weather resistance: Good

EMC performance: Overall aluminium foil and tinned-copper braid help maintain signal integrity in electrically noisy environments

Environmental compliance reference: RoHS and PFAS-free material options

Cable Configuration	Approx. Outer Ø	Maximum Outer Ø	Copper Weight	Approx. Cable Weight
3 × (2 × 30 AWG)ST + 2 × 28 AWG	5.2 mm	5.6 mm	22.5 kg/km	39 kg/km

Other conductor configurations, USB connector assemblies, sheath colors and customized dimensions are available on request.

hulk packing

About Hulk Electric

THE FACTORY
BEHIND EVERY METER

Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.

Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.

20+Years Manufacturing

30+Countries Served

10K㎡Factory Floor

35+Certifications

About Our Factory Talk to an Engineer

Source Factory

Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.

Deep Customization

Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.

7-Day Sampling

Rapid samples for new specifications. 15-day lead time on standard production orders.

Global Compliance

35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.

Common Questions

BEFORE YOU ORDER

For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.

Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.

Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.

Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.

Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.

Get a Quotation

SEND US YOUR
SPECIFICATION

Tell us your core count, cross-section, and application — our engineering team will confirm the right configuration and send pricing within one working day.

Reply within 1 working day

Free samples for qualification

Cross-reference from any brand

Direct factory pricing — no middlemen